Push-turn button retaining means in shank end



Jan. 14, 1964 3,117,813

PUSH-TURN BUTTON RETAINING MEANS IN SI-LANK END Filed Oct. 2, 1961 F. J.RUSSELL EIAI.

2 Sheets-Sheet 2 INV EN T0128 FEED J; RUSSELL GEORGE B. SOLOV/EFF 3% aATTORNEYS United States Patent 3,117,813 PUSH-TURN BUTEGN RETAININGIVlEANS IN END Fred 3. Russell, Los Augeies, Calif. (8635 his St, SouthGate, Caliil}, and George B. Solovieir", South Gate, Calif; saidSoloviefi assigns: to said Russell Filed Get. 2, 1961, Ser. No. 142,3542 Claims. (Cl. 292359) The invention relates to door locks of thecompact variety, with design and relationship of the sundry partsproviding for locking and unlocking of the outside operating member bythe operation of a push-turn button in the inner operating member.

Among the objects of the invention is to provide a new and improvedconstruction and relationship whereby configurations on the end of aninner operating member shank serve to hold a push-turn locking andunlocking button in extended or retracted positions as desired.

Another object of the invention is to simplify the number and nature ofparts involved in a locking and unlocking button mechanism and to makesuch a mechanism more reliable.

With these and other objects in view, the invention consists in theconstruction, arrangement and combination of the various parts of thedevice whereby the objects contemplated are attained, as hereinafter setforth, pointed out in the appended claims, and illustrated in theaccompanying drawings.

In the drawings:

FIGURE 1 is a fragmentary longitudinal sectional View showing the lockin unlocked condition.

FIGURE 2 is a longitudinal sectional view taken in a direction ninetydegrees removed from the view of FIG- URE 1 with the parts in unlockedcondition.

FIGURE 3 is a fragmentary longitudinal sectional view similar to FIGURE1 but with the parts in locked condition.

FIGURE 4 is a fragmentary longitudinal sectional view similar to FIGURE2 but with the parts in locked condition.

FIGURE 5 is a side elevational view partially broken away showing therelationship or" parts in unlocked condition.

FIGURE 6 is a side elevational view similar to FIG- URE 5 but with aportion of the parts removed for greater clarity and showing therelationship of parts in locked condition.

FIGURE 7 is an end elevational view of the inside end of the shank onthe inner operating assembly.

FIGURE 8 is a fragmentary side elevational view taken on the line 88 ofFIGURE 7.

FIGURE 9 is an exploded perspective view of the parts making up thelocking and unlocking mechanism.

In an embodiment of the invention chosen for the purpose ofillustration, there is shown an inner operating assembly embodied in aknob having a shank 11 thereon rotatably mounted and secured within amounting plate 12 over the exterior of which is applied a decorativerosette 13. An outer operating assembly is designed to be employed withthe device but is of substantially conventional construction sufiicientthat there is shown only a hollow square tubular outer spindle 14designed to be anchored to an outer knob (not shown) and a solid squarespindle 15 of the type ordinarily actuated by a key actuated mechanism.

A collar 16 bears against the inside surface of the mounting plate 12and is held in place by employment of a snap ring 17 secured in anannular groove 18 on the shank 11. Mounted in this fashion, the knob andshank rotate freely with respect to the mounting plate 12 and are firmlyheld in position in an axial direction.

3,ll7,8l3 Patented Jan. 14, 1954 ice A button 19 shown in FIGURE 1 formspart of a locking actuator normally rotatably mounted in the knob 10upon which is an extension 20 which projects through the knob and hasattached thereto a sleeve 21 concentrically located within the shank 11and adapted both to rotate within the shank and to move a short distanceax ally with respect to the shank in response to manipulation of thebutton 19.

A bracket 22 has legs 23 of a length sufiicient to space a face plate 24of the bracket at a substantial distance inwardly of the mounting plate12. Feet 25 of the bracket are attached by means of tabs 26 securely tothe mounting plate so that the bracket 22 and the mounting plate 12together form a stationary part of the mechanism when the device ismounted in a door.

In the space between the legs 23 and beneath the face plate 24 are theparts which comprise the locking mechanism. Among these parts is a lockwasher 30 the form and configuration of which is well illustrated in theperspective exploded view, FIGURE 9. The lock washer is impressed in adirection from right to left as viewed in FIGURES 1 through 4 inclusiveby action of a coiled spring 31, one end of which is kept in a recess 32at the underside of the face plate 24- and the other end of whichimpresses against the lock washer. On the lock washer is a series offour locking projections 33; which are adapted to extend intocomplements: openings 34 under conditions when the lock is locked. Theseparts are all advantageously illustrated in FIGURE 9 and show also intheir sundry operated positions in FIGURES 1 through 4 inclusive.Although the lock washer is free to shift axially, it is heldnonrotatably relative to the collar 16 by employment of prongs receivedin recesses 37. The collar in turn is retained nonrotatable with respectto the shank 11 by use of projections 38 which are received in slots 39of the shank. The square spindle 14 is slidably received in a squarehole 40 of the lock washer 30. The lock washer by this means isnonrotatably mounted with respect to the square spindle and hence theouter operating assembly.

The sleeve 21 previously described as being connected and subject torotation by the button 19 has a noncircular opening 41 at the inside endinto which extend detents 42, four in number. Spaces 43 between thedetents accommodate corners of the hollow square spindle 14 and providefor a degree of lost motion between the square spindle and the sleeve.This lost motion makes it possible to rotate the locking actuatorembodied in the button 19, the extension 20 thereon and the sleeve 21when the solid spindle 15 is held in nonrotatable position as a part ofthe locked key-actuated mechanism housed in the outer knob (not shown).

On the sleeve 21 is a pair of cams or camming projections 44. Inunlocked condition of the parts, the cams 44 are slidably received inthe slots 39 as shown in FIGURES 1 and 5. In this position the button19, of course, cannot be rotated relative to the knob 19. The button 19,however, can be moved axially inwardly from left to right as viewed inFIGURES 1 and 4 inclusive, and this motion is sufiicient to enable thecams 44 to move out of the slots 39. As the sleeve 21 is moved from leftto right to relieve the cams from engagement with the slots, the sleevemoves against the lock washer 3t), shifting the lock washer likewisefrom left to right until the locking projections 33 protrude into theopenings 34 in the bracket. This locks the spindle 14 against rotation.To retain this locked relat onship the sleeve 21 is then rotated untilthe cams 44 are received in cam recesses 4-5 which are provided in anend edge .6 of the shank 11. In this position by reason of having thecams rest in the cam recesses, the sleeve 21 is held in extendedposition and hence the locking projections 33 are retained in theopenings 34.

Accordingly, the outer operating assembly is locked as long as thiscondition prevails.

When the device is to be'unlocked, the button 19 is rotated in reversedirection, namely, clockwise, as viewed in FlGURE 6 until the cams areremoved from the cam recesses 45 and rotated to positions opposite theslots 39, whereupon the cams are received in the slots 39, and thesleeve 21 is then moved from right to left, as viewed in FIGURES 1through 4 inclusive, by pressure of the spring 31 until it is returnedto the position illustrated in FIGURES 1 and 2.

It Will be apparent therefore that there need be but few working partsof the device to provide for locking or unlocking of the outsideoperatin assembly by manipulation of a button on the inside operatingassembly, the result of which is to so space and position tie cams, camrecesses and slots as to accomplish the desired locking or unlocking.

Although not essential to an understanding of the invention hereindisclosed, it should be understood that the solid square spindle 15might have a rotational engagc-' ment (not shown) with a key-actuatedmechanism and therefore may be turned to unlocked condition by operationof a key in the outer operating assembly whereby to open the door fromthe outside.

While the invention has herein been shown and described in what isconceived to be the most practical and preferred embodiment, it isrecognized that departures may be made therefrom within the scope of theinvention, which is not to be limited to the details disclosed hereinbut is to be accorded the full scope of the claims so as to embrace anyand all equivalent devices.

Having described the invention, what is claimed as new in support ofLetters Patent is:

1. In a door lock having an outer operating member, a stationary means,an inner operating member, a shank thereon rotatably mounted in saidstationary means and a collar on said shank, a locking actuator in saidinner operating member having an axially movable mounting relative tosaid stationary member and said shank, said actuator being rotatablerelative to said stationary means and said shank in a first axiallyshifted position, a lock washer having an axially slidable andnonrotatable engagement with said outer operating member, said lockwasher having a locking engagement with said stationary means in a firstaxially shifted position, an extension on said collar extending intononrotatable engagement with said lock washer, said lock washer beingmovable axially by said locking actuator to said first axially shiftedposition and said locking actuator being rotatable relative to said lockwasher in said first axially shifted position, said locking actuator andsaid shank having detaining means in mutually releasable engagement insaid first axially shifted position whereby to retain said outeroperating member in a locked relationship, said locking actuator havinga nonrotatable engagement with said shank in a second axially shiftedposition.

2. In a door lock having an outer operating member, a stationary means,an inner operating member, a shank thereon rotatably mounted in saidstationary means and a collar on said shank, a locking actuator in saidinner operating member having an axially movable mounting relative tosaid stationary member and said shank, said actuator being rotatablerelative to said stationary means and said shank in a first axiallyshifted position, a lock washer having an axially slidable andnonrotatable engagement with said outer operating member, said lockwasher having a locking engagement with said stationary means in a firstaxially shifted position, an extension on said collar extending intononrotatable engagement with said lock washer, said lock Washer beingmovable axially by said locking actuator to said first axially shiftedposition and said locking actuator being rotatable relative to said lockwasher in s id first axially shifted position, a first cam element onsaid locking actuator and a cornplementary cam element on an endwardlyfacing edge of said shank having a detainin releasable engagement withsaid first cam element in said first axially shifted position whereby toretain said outer operating member in a locked relationship, saidlocking actuator having a nonrotatable engagement with said shank in asecond axially shifted position.

References Cited in the tile of this patent UNITED STATES PATENTS2,434,288 Schlage Jan. 13, 1948 2,769,911 Russell June 7, 1955 2,733,946North et al. Feb. 7, 1956 3,025,096 Williams Mar. 13, 1962

1. IN A DOOR LOCK HAVING AN OUTER OPERATING MEMBER, A STATIONARY MEANS,AN INNER OPERATING MEMBER, A SHANK THEREON ROTATABLY MOUNTED IN SAIDSTATIONARY MEANS AND A COLLAR ON SAID SHANK, A LOCKING ACTUATOR IN SAIDINNER OPERATING MEMBER HAVING AN AXIALLY MOVABLE MOUNTING RELATIVE TOSAID STATIONARY MEMBER AND SAID SHANK, SAID ACTUATOR BEING ROTATABLERELATIVE TO SAID STATIONARY MEANS AND SAID SHANK IN A FIRST AXIALLYSHIFTED POSITION, A LOCK WASHER HAVING AN AXIALLY SLIDABLE ANDNONROTATABLE ENGAGEMENT WITH SAID OUTER OPERATING MEMBER, SAID LOCKWASHER HAVING A LOCKING ENGAGEMENT WITH SAID STATIONARY MEANS IN A FIRSTAXIALLY SHIFTED POSITION, AN EXTENSION ON SAID COLLAR EXTENDING INTONONROTATABLE ENGAGEMENT WITH SAID LOCK WASHER, SAID LOCK WASHER BEINGMOVABLE AXIALLY BY SAID LOCKING ACTUATOR TO SAID FIRST AXIALLY SHIFTEDPOSITION AND SAID LOCKING ACTUATOR BEING ROTATABLE RELATIVE TO SAID LOCKWASHER IN SAID FIRST AXIALLY SHIFTED POSITION, SAID LOCKING ACTUATOR ANDSAID SHANK HAVING DETAINING MEANS IN MUTUALLY RELEASABLE ENGAGEMENT INSAID FIRST AXIALLY SHIFTED POSITION WHEREBY TO RETAIN SAID OUTEROPERATING MEMBER IN A LOCKED RELATIONSHIP, SAID LOCKING ACTUATOR HAVINGA NONROTATABLE ENGAGEMENT WITH SAID SHANK IN A SECOND AXIALLY SHIFTEDPOSITION.